Prof. Janice Barton (University of Bristol) will talk about “Integrating thermal imaging and digital image correlation to characterise defects and material properties in CFRP materials”.
The webinar is free to attend and open to everyone from all backgrounds, whether you are an experienced physicist or if you have an interest in the subject and want to learn more. Please pre-register for the free webinar via https://iop.eventsair.com/ibsim2026/registers
About the talk:
A significant challenge exists in the application of an infra-red imaging processing approach known as Thermoelastic Stress Analysis (TSA) to Carbon Fibre Reinforced Polymer (CFRP) components. It has been shown the stress induced temperature change resulting from the thermoelastic coupling, is heavily influenced by heat transfer. The conclusion may be that quantitative TSA on laminated CFRP component is not possible. Both in-plane and through the thickness heat conduction occurs, which is driven by the stress gradients in a structural component. The through thickness thermal conduction occurs in multidirectional laminates mainly because of the step changes in the stresses at the ply interfaces. The conduction is dependent on the ply thickness, the ply orientation, the paint coating thickness and the thickness of the resin rich surface layer (RRL) resulting from the manufacturing process. Even in unidirectional (UD) CFRP materials the paint and the RRL have a significant effect on the response. In the presentation it is demonstrated that heat transfer enables characterisation of sub surface damage and defects, as well as enabling a novel means of determining the material coefficients of thermal expansion.
About the speaker:
Janice Dulieu-Barton is a Professor of Experimental Mechanics in the Bristol Composites Institute at the University of Bristol, where she is the Director of the EPSRC Centre for Doctoral Training in Innovation for Sustainable Composites Engineering and the Industrial Doctorate Centre in Composites Manufacture. Janice received her PhD in 1993 from Manchester University researching the topic now known as ‘thermoelastic stress analysis’. She has published around 500 papers with 150 in archival journals. Janice’s expertise is in imaging for data rich material characterisations and structural integrity assessments, with a focus on creating new measurement methodologies using Infra-Red (IR) imaging. She has won numerous grants that have allowed her to develop novel approaches in experimental mechanics, most recently focusing on integration of flexible photonics into composite structures with collaborators at the University of Southampton.
Further information about the event can be found at: https://iop.eventsair.com/ibsim2026/webinar